Hash¶

save one level json (a Python dict) but can operate on each key-value pair separately.

commands

• hmget key k [k ...]: get values based on sub-keys deprecated?

• hmset key k v [k v ...]: set values with key-value pairs

• hdel key k [k ...]: delete key-value pairs, return number of pairs found and deleted

• hlen key: return number of key-value pairs

other commands

• hexists key k: check key existence

• hkeys key: get keys

• hvals key: get values

• hgetall key: get all key-value pairs

• hincrby key k val_incr: increase value at k

• hincrbyfloat key k val_incr: increase value at k by float